On Fri, May 04, 2007 at 03:02:08PM +0530, Sujith Manoharan wrote:
> Hi,
>
> The kernel that comes with Fedora Core 4 [ 2.6.11-1.1369_FC4 ] has
> CONFIG_REGPARM enabled by default.
>
> If I enforce my own calling convention by using
> __attribute__((regparm(0))) for all functions, would it be a problem ?
> Or should I compile my kernel module against this kernel using the gcc
> option -mregparm=3 ?
>
> Basically, I want to stipulate that the function parameters have to be
> passed through the stack even if the kernel has been compiled with
> CONFIG_REGPARM enabled.
>
> What would be the best way to achieve this ?
That can't work:
Caller and callee must agree on where to find the parameters.
If the caller passes them on the stack and the callee expects them in
registers, that obviously wouldn't work.
> Thanks in advance.
>
> Sujith.
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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