On Mon, Apr 30, 2018 at 06:44:26PM -0400, Mathieu Desnoyers wrote:
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index c32a181a7cbb..ed21a777e8c6 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -223,6 +223,7 @@ config PPC
> select HAVE_SYSCALL_TRACEPOINTS
> select HAVE_VIRT_CPU_ACCOUNTING
> select HAVE_IRQ_TIME_ACCOUNTING
> + select HAVE_RSEQ
> select IRQ_DOMAIN
> select IRQ_FORCED_THREADING
> select MODULES_USE_ELF_RELA
> diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
> index 61db86ecd318..d3bb3aaaf5ac 100644
> --- a/arch/powerpc/kernel/signal.c
> +++ b/arch/powerpc/kernel/signal.c
> @@ -133,6 +133,8 @@ static void do_signal(struct task_struct *tsk)
> /* Re-enable the breakpoints for the signal stack */
> thread_change_pc(tsk, tsk->thread.regs);
>
> + rseq_signal_deliver(tsk->thread.regs);
> +
> if (is32) {
> if (ksig.ka.sa.sa_flags & SA_SIGINFO)
> ret = handle_rt_signal32(&ksig, oldset, tsk);
> @@ -164,6 +166,7 @@ void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
> if (thread_info_flags & _TIF_NOTIFY_RESUME) {
> clear_thread_flag(TIF_NOTIFY_RESUME);
> tracehook_notify_resume(regs);
> + rseq_handle_notify_resume(regs);
> }
>
> user_enter();
Again no rseq_syscall().
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