Commit 682775b8 authored Jul 05, 2013 by James Yang Committed by Scott Wood Oct 18, 2013

powerpc/booke: clear DBCR0_BT in user_disable_single_step()

BookE version of user_disable_single_step() clears DBCR0_IC for the
instruction completion debug, but did not also clear DBCR0_BT for the
branch taken exception. This behavior was lost by the 2/2010 patch.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

parent 3743c9b8

arch/powerpc/kernel/ptrace.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -895,7 +895,7 @@ void user_disable_single_step(struct task_struct *task)
		* And, after doing so, if all debug flags are off, turn
		* off DBCR0(IDM) and MSR(DE) .... Torez
		*/
		task->thread.debug.dbcr0 &= ~DBCR0_IC;
		task->thread.debug.dbcr0 &= ~(DBCR0_IC\|DBCR0_BT);
		/*
		* Test to see if any of the DBCR_ACTIVE_EVENTS bits are set.
		*/