Commit 70a54a4f authored May 06, 2013 by Michael Neuling Committed by Benjamin Herrenschmidt Jun 20, 2013

powerpc: Fix single step emulation of 32bit overflowed branches



Check truncate_if_32bit() on final write to nip.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent b9ef7d6b

arch/powerpc/lib/sstep.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -580,7 +580,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
		if (instr & 1)
		regs->link = regs->nip;
		if (branch_taken(instr, regs))
		regs->nip = imm;
		regs->nip = truncate_if_32bit(regs->msr, imm);
		return 1;
		#ifdef CONFIG_PPC64
		case 17: /* sc */