On Mon, Jan 14, 2013 at 07:20:46AM -0800, Ramesh.P wrote:
Hi,
On Sun, Jan 13, 2013 at 8:50 PM, horseriver <horserivers@gmail.com> wrote:
On Sun, Jan 13, 2013 at 09:27:45PM -0800, Dave Hylands wrote:
Hi,
On Sun, Jan 13, 2013 at 11:29 AM, horseriver <horserivers@gmail.com> 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.
Thanks!
Another question:
__attribute__((regparm(3))) ; what does this do ?
Thank You! what the use of doing like this ? why tell gcc to pass param like this ?
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
-- Dave Hylands Shuswap, BC, Canada http://www.davehylands.com
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies