On Mon, Jan 14, 2013 at 6:02 AM, horseriver <[email protected]> wrote:
> On Mon, Jan 14, 2013 at 02:44:11PM +0000, Anuz Pratap Singh Tomar wrote: > > On Mon, Jan 14, 2013 at 4:50 AM, horseriver <[email protected]> > 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 <[email protected]> > > > 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 ? > > > > > > > > > > > > A simple google search should have answered this > > http://ohse.de/uwe/articles/gcc-attributes.html > > > > Synopsis > > > > regparm (NUMBER) Found in versions: 2.7-3.4 Description: > > > > Functions that take a variable number of > > arguments will continue to be passed all of their arguments on the > > stack. > > > > what does this mean? > > > May be you should really read more. I would suggest reading some i386 assembly. Thank you Warm Regards Anuz
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