Hi,
On Sun, Jan 13, 2013 at 8:50 PM, horseriver <horserivers@xxxxxxxxx> wrote:
On Sun, Jan 13, 2013 at 09:27:45PM -0800, Dave Hylands wrote:
> Hi,Thanks!
>
> On Sun, Jan 13, 2013 at 11:29 AM, horseriver <horserivers@xxxxxxxxx> wrote:
> >
> > hi:
> >
> > In kernel code . some function is defined by
> __attribute__((__section__(".initcall" level ".init")))
> >
> > what does this do ?
>
> It puts the address of the function in a linker section named
> .initcallX.init where X is replaced by the level.
>
> These functions are called in order to initialize various subsystems and
> drivers during kernel bootup.
Another question:
__attribute__((regparm(3))) ; what does this do ?
It causes the compiler to pass the argument (3 in this case) to be passed in registers (like EAX, ECX and EDX) instead of stack.
Thanks,
Ramesh
_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
