Commit 70a54a4f authored by Michael Neuling's avatar Michael Neuling Committed by Benjamin Herrenschmidt
Browse files

powerpc: Fix single step emulation of 32bit overflowed branches 



Check truncate_if_32bit() on final write to nip.

Signed-off-by: default avatarMichael Neuling <mikey@neuling.org>
Signed-off-by: default avatarBenjamin 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 */