Re: Use of GCC __attribute__(("FIQ")) in Linux kernel?

On Wed, 18 May 2011, Chung-Lin Tang wrote:

Hi kernel folks, there's an upstream GCC PR about banked registers not being properly utilized in FIQ routines, specified by GCC attibutes, see here: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48429

I was just wondering, is this GCC __attribute__(("FIQ")) feature used in the Linux kernel as well, or are the entry paths in Linux already done in assembler?

All FIQ related code in the kernel is in assembler.

Nicolas