tag	line	file	source code
sc_a2	68	arch/mips/kernel/signal.c	regs->reg6  = context->sc_a2;
sc_a2	190	arch/mips/kernel/signal.c	frame->scc.sc_a2 = regs->reg6;
sc_a2	10	include/asm-mips/sigcontext.h	unsigned long         sc_at, sc_v0, sc_v1, sc_a0, sc_a1, sc_a2, sc_a3;