17 May
2011
17 May
'11
11:02 p.m.
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?
Thanks, Chung-Lin